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प्रश्न
What do you mean by sound ranging?
एका वाक्यात उत्तर
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उत्तर
The process of detecting obstacles by sending ultrasonic waves and hearing the echo is called sound ranging.
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संबंधित प्रश्न
What are wavelength, frequency, time period and amplitude of a sound wave?
What are infrasonics? Can you hear them?
What is the nature of sound waves in air?
Which of the following can produce longitudinal waves as well as transverse waves under different conditions?
How is the sound produced?
A bat emits an ultrasonic sound of frequency 0.25 MHz. Calculate the time in which one vibration is completed.
Match the following
| 1. | Infrasonic | (a) | Compressions |
| 2. | Echo | (b) | 22 kHz |
| 3. | Ultrasonic | (c) | 10 Hz |
| 4. | High-pressure region | (d) | Ultrasonography |
The sound produced by a thunderstorm is heard 10 s after the lightning is seen. Calculate the approximate distance of the thunder cloud. (Given the speed of sound = 340 m s–1.)
What is a wave?
Name the waves used for sound ranging. State one reason for their use.
